LWA-2026-7714 MAL-2026-11763 ↗ confirmed malware

@ornikar/lerna-config@11.0.6

Malicious code in @ornikar/lerna-config (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1105 · Ingress Tool TransferT1027 · Obfuscated Files or Information

Analysis

The preinstall hook downloads the Bun JavaScript runtime from github[.]com/oven-sh/bun/releases and executes a 727KB obfuscated Bun-compiled bundle (math_init.js) at install time. The package is a trojanized version of the legitimate @ornikar/lerna-config monorepo tooling — the original lerna-config source files are present but the preinstall hook runs before any of them are loaded. The opaque binary payload cannot be statically verified; its execution is triggered automatically on npm install.

analyzed by
Leitwacht
first seen
Aug 4, 2026, 11:16 AM
analyzed
Aug 4, 2026, 11:22 AM
weekly installs
65

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.